Federico Mingozzi, head of the Immunology and Liver Gene Therapy team at Généthon, the laboratory created by the AFM Téléthon, presented at the 48th Annual Meeting of the European Society for Pediatric Gastroenterology, Hepatology and Nutrition (ESPGHAN, May 6-9, Amsterdam), work done in collaboration with an Italian and Dutch teams showing long term correction of a genetic defect causing toxic buildup of bilirubin in murine and rat models of Crigler-Najjar syndrome.